Question

label the following ph scale with the correct numbers at the far ends and center where the ph most closely matches the ph of hair. what does a higher ph rating indicate about a shampoo? that the shampoo is alkaline. which type of shampoo—slightly more alkaline or slightly more acidic—matches the natural ph of hair? what are two possible effects of using a high ph shampoo?

Explanation:

The pH scale ranges from 0 - 14. A pH of 7 is neutral, values below 7 are acidic and above 7 are alkaline. Hair has a natural pH around 4.5 - 5.5. A higher - pH shampoo is more alkaline. An acidic shampoo is better for hair as it helps close the hair cuticle, reducing frizz and damage. High - pH shampoos can open the cuticle, causing dryness, frizz, and making hair more prone to damage.

Answer:

1. The far ends of the pH scale: The left - hand end is 0 (most acidic) and the right - hand end is 14 (most alkaline). Hair's pH (around 4.5 - 5.5) would be on the acidic side of the scale, closer to the left.
2. What a higher pH rating indicates about a shampoo: The shampoo is alkaline.
3. Which type of shampoo is better for hair: Slightly more acidic shampoo.
4. Two possible effects of using a high pH shampoo: Dryness and frizz.